# Suppose that the demand function for a certain product isq = 400 - 4p(a) Enter the equation for revenue R as a function of price p(b) What is the (instantaneous) rate of change of revenue with respect to price when the price is $14?(c) At what price is the derivative of revenue with respect to price exactly zero? Question Suppose that the demand function for a certain product is q = 400 - 4p (a) Enter the equation for revenue R as a function of price p (b) What is the (instantaneous) rate of change of revenue with respect to price when the price is$ 14?

(c) At what price is the derivative of revenue with respect to price exactly zero?